Adjusting mechanism for wrapping-machines.



F. M. PIERCE.

ADJUSTING MECHANISM FOR WRAPPING MACHINES.

APPLICATION men FEB. 2|, 1916.

1? fiw m 1 w v Patented Aug. 21, 1917.

F. M. PIERCE.

ADJUSTING MECHANISM FOR WRAPPING MACHINES. APPLICATION FILED FEB. 21.1915.

v mfifiw wl 1 m Patented Aug. 21, 1917.

3 SHEETS-SHEET 2- ES a EB TlNTT FTATFF PATENT UFFTFE.

FRANK M. PIERCE, OF CHICAGO, ILLINOIS, ASSIGNOR '10 PIERCE WRAPPINGMACHINE COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ADJUSTING MECHANISM FOR WRAPPING-MACHIN ES.

maaeii.

Specification of Letters Patent.

Patented Aug. 21, llgft.

Original application filed November 26, 1915, Serial No. 63,502. Dividedand this application filed February 21, 1916. Serial No. 79,621.

To all whom it may concern:

Be it known that I, FRANK M. PIERCE, a citizen of the United States, anda resident of the city of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in anAdjusting Mechanism for Wrapping- Machines and T do'hereby declare thatthe following is a full, clear, and exact description of the same,reference being had to the accompanyingdrawings, and to the numerals ofreference marked thereon, which form a part of this specification.

This application constitutes a division'of my co-pending application fordouble wrapper wrapping machines, filed November 26th, 1915, Serial No.63,502.

This invention relates to an adjusting means for the carriage on whichthe driving and supporting rolls of the wrapping machine are mounted bywhich an article is supported in proper position for wrapping .andrevolved at the required rate of speed to receive the wrapping appliedthereon.

It is an object therefore of this invention to construct a means foradjusting the supporting carriage provided for an article in a wrappingmachine whereby the article may be positioned according to its size tore ceive a wrapper applied thereon.

It is also an object of this invention to provide an adjusting meansforming a part of a wrapping machine adapted to wrap annular ob ects ofdifferent size, such as tires, coils of wire and the like, whereby thearticle may be supported at a position proper to receive a wrapperapplied thereon regardless of the size of the article.

It is furthermore an important object of this invention to construct anadjusting means for the supporting carriage for articles in a wrappingmachine to position different articles of different size properly toreceive a wrapper applied thereon.

It is finally an object of this invention to construct a simple andeffective means for transferring an adjusting movement to the supportingcarriage and rollers for an artijustable carriage and means foradjusting the same at the lower end of the machine.

Fig. & is a detail section on line 4- of Fig. 3.

Fig. 5 is a detail section taken on line 5-5 of Fig. 3.

Fig. 6 is a detail section taken on line 66 of Fig. 3. n

Fig. 7 is a detail View with parts omitted, taken on line 7-7 of Fig. 3.

As shown in the drawings:

The frame of the wrapping machine is denoted as a whole by the referencenumeral 1, and is provided with an arched cross.

frame member 2, from which an open gap or crescent shaped shuttle frame3, depends, as clearly shown in Fig. 1. A shuttle 4,

having an open gap therein, is rotatable around on said crescent shapedframe and is adapted to carry wrapping material to apply the same on anarticle which is mounted in upright position in the machine projectingthrough the open gap of said crescent shaped frame to permit the shuttleto rotate through the eye of the article. The article mounted in themachine for wrapping is supported upon and driven by a pair of powerdriven rollers 5. These rollers 5, are secured in parallel relation uponshafts 6, which are journaled in a carriage or frame 7, which isadjustable in the machine. Said carriage or frame 7, is providedcentrally at each end thereof with an upper outwardly curved arm 8, anda lower arm 9, said arms 8 and 9, at each end of the carriage inalinement with one another and apertured to en- Nil wheel 13. Journaledon small stud shafts 14 and 15, secured in the frame 1, are sheaves 16and 17 respectively, and connected to each of said shafts and to itsrespective sheave journaled thereon in each instance is a coiledinitially stressed spiral spring 18, which is so connected that saidsheaves tend to rotate in opposite directions.

A sprocket chain 19, is trained around thesprocket wheel 13, of theshaft 11, and also around a sprocket wheel 20, secured on a shaft 21,which is journaled 1n the frame 1, of the machine on a line between andabove the stud shafts 14 and '15. The ends of said sprocket chain 19,are secured to the respective sheaves 14 and 15,the spiral springs ofeach of said sheaves acting normally to tend towind the ends of thesprocket chain thereon, by rotation, as pointed out, in oppositedirections. The shaft 21, has a small worm pinion 22, secured thereon,which meshes with a worm 23, secured upon a long adjusting rod or shaft24, journaled at an angle in the frame 1, of the wrapping machine, andhaving an actuating crank 25, on its upper end to rotate the same.

The operation is as follows:

- When it is desired to adjust the supporting driving rollers 5, onwhich the article to be wrapped rests to move the article into properrelation with the rotatable shuttle 4, the crank 25, is actuated eitherin one direction or the other, dependent upon the direction ofadjustment desired. This serves to rotate the shaft or rod 24, which inturn, through the worm and worm wheel 23 and 22, rotates the shaft 21,whereupon the sprocket 20, thereon, moves the sprocket chain 19, thusrotating the shaft 11, by the sprocket wheel 13. Rotation of the shaft11, causes the small pinion 12, thereon, meshing with the teeth formedon the upright 10, to raise or lower the carriage 7 in the frame of thewrapping machine. Due to the tension take-up mechanism consisting of thespring impelled sheaves 16 and 17, the one end of the chain 19, is woundon one thereof when the carriage 7, is elevated, and wound on the otherthereof when the carriage 7, is

lowered.

I am aware that various details of construction may be varied through awide range without departing from the principles of this invention, andI therefore do not purpose limiting the patent granted otherwise thannecessitated by the prior art.

I claim as my invention:

1. An adjusting means for the drivingand supporting rollers of awrapping machine comprising a carriage on which said rollers arejournaled, upright guide members secured in the frame of the machine,means on said carriage slidably engaging said guide members, a shaftjournaled in said carriage, pinions thereon engaging said upright guidesto elevate and lower the carria 0 when said shaft is rotated, a sprocketchain to rotate said shaft, and tension means adapted to take up saidsprocket chain when the chain is moved to rotate said shaft.

2. An adjusting means for a carriage vertically movable in a wrappingmachine comprising in combination with uprights secured in the machine,means journaled in said carriage to engage said uprights to elevate andlower the carriage thereon, a sprocket chain to rotate said means, meansengaging said sprocket chain to operate the same, and spring tensionedsheaves to which the respective ends of said sprocket chain areconnected to take up and feed out said sprocket chain when the carriageis raised and lowered 3. The combination with an adjustable carriage ofa wrapping machine and the adjusting means for said carriage, of asprocket chain for operating said adjusting'means, spring impelledsheaves to which the respective ends of said sprocket chain areconnected, and a sprocket wheel adapted to operate said chain to drivesaid means and said adjustable carriage.

4. An adjusting means for a wrapping machine comprising a carriage;adjustable mechanisms thereon for driving and supporting an article tobe wrapped, a sprocket chain for operating the carriage, and anautomatic tension device connected to each end of said sprocket chain totake up the same as the chain is used to operate the adjustablemechanisms.

5. The combination with a wrapping machine, of adjustable means mountedthereon for supporting an article to be wrapped, flexible meansconnected with said means to raise or lower the same, automatic take-upmeans connected to each end of said flexible means, and manuallyoperable means adapted to drive said flexible means to position saidadjustable means to permit wrapping of the article.

6. In an adjusting means for a wrapping machine of the class described,a carriage, means thereon for driving and supporting an article to bewrapped, flexible means connected to operate said carriage, en eutematictake-up device connected to each end of said flexible means, andmechanisms for operating said flexible means to transmit a movement tothe carriage to wise or lower the same to properly position the articleto be Wrapped.

In testimony whereof have hereunto suhscribed my name in the presence oftwo subscribing witnesses.

]ERANK M. PIERCE. Witnesses:

EARL M. HARDINE, Gnonen R. Moome.

